1 /**
2 * Copyright (c) 2006-2016 LOVE Development Team
3 *
4 * This software is provided 'as-is', without any express or implied
5 * warranty. In no event will the authors be held liable for any damages
6 * arising from the use of this software.
7 *
8 * Permission is granted to anyone to use this software for any purpose,
9 * including commercial applications, and to alter it and redistribute it
10 * freely, subject to the following restrictions:
11 *
12 * 1. The origin of this software must not be misrepresented; you must not
13 * claim that you wrote the original software. If you use this software
14 * in a product, an acknowledgment in the product documentation would be
15 * appreciated but is not required.
16 * 2. Altered source versions must be plainly marked as such, and must not be
17 * misrepresented as being the original software.
18 * 3. This notice may not be removed or altered from any source distribution.
19 **/
20
21 #include "ModPlugDecoder.h"
22
23 #ifndef LOVE_NO_MODPLUG
24
25 #include "common/Exception.h"
26
27 namespace love
28 {
29 namespace sound
30 {
31 namespace lullaby
32 {
33
ModPlugDecoder(Data * data,const std::string & ext,int bufferSize)34 ModPlugDecoder::ModPlugDecoder(Data *data, const std::string &ext, int bufferSize)
35 : Decoder(data, ext, bufferSize)
36 , plug(0)
37 , duration(-2.0)
38 {
39
40 // Set some ModPlug settings.
41 settings.mFlags = MODPLUG_ENABLE_OVERSAMPLING | MODPLUG_ENABLE_NOISE_REDUCTION;
42 settings.mChannels = 2;
43 settings.mBits = 16;
44 settings.mFrequency = sampleRate;
45 settings.mResamplingMode = MODPLUG_RESAMPLE_LINEAR;
46
47 // fill with modplug defaults (modplug _memsets_, so we could get
48 // garbage settings when the struct is only partially initialized)
49 // This does not exist yet on Windows.
50
51 settings.mStereoSeparation = 128;
52 settings.mMaxMixChannels = 32;
53 settings.mReverbDepth = 0;
54 settings.mReverbDelay = 0;
55 settings.mBassAmount = 0;
56 settings.mBassRange = 0;
57 settings.mSurroundDepth = 0;
58 settings.mSurroundDelay = 0;
59 settings.mLoopCount = -1;
60
61 ModPlug_SetSettings(&settings);
62
63 // Load the module.
64 plug = ModPlug_Load(data->getData(), data->getSize());
65
66 if (plug == 0)
67 throw love::Exception("Could not load file with ModPlug.");
68
69 // set master volume for delicate ears
70 ModPlug_SetMasterVolume(plug, 128);
71 }
72
~ModPlugDecoder()73 ModPlugDecoder::~ModPlugDecoder()
74 {
75 if (plug != 0)
76 ModPlug_Unload(plug);
77 }
78
accepts(const std::string & ext)79 bool ModPlugDecoder::accepts(const std::string &ext)
80 {
81 static const std::string supported[] =
82 {
83 "699", "abc", "amf", "ams", "dbm", "dmf",
84 "dsm", "far", "it", "j2b", "mdl", "med",
85 "mid", "mod", "mt2", "mtm", "okt", "pat",
86 "psm", "s3m", "stm", "ult", "umx", "xm",
87 ""
88 };
89
90 for (int i = 0; !(supported[i].empty()); i++)
91 {
92 if (supported[i].compare(ext) == 0)
93 return true;
94 }
95
96 return false;
97 }
98
clone()99 love::sound::Decoder *ModPlugDecoder::clone()
100 {
101 return new ModPlugDecoder(data.get(), ext, bufferSize);
102 }
103
decode()104 int ModPlugDecoder::decode()
105 {
106 int r = ModPlug_Read(plug, buffer, bufferSize);
107
108 if (r == 0)
109 eof = true;
110
111 return r;
112 }
113
seek(float s)114 bool ModPlugDecoder::seek(float s)
115 {
116 ModPlug_Seek(plug, (int)(s*1000.0f));
117 return true;
118 }
119
rewind()120 bool ModPlugDecoder::rewind()
121 {
122 // Let's reload.
123 ModPlug_Unload(plug);
124 plug = ModPlug_Load(data->getData(), data->getSize());
125 ModPlug_SetMasterVolume(plug, 128);
126 eof = false;
127 return (plug != 0);
128 }
129
isSeekable()130 bool ModPlugDecoder::isSeekable()
131 {
132 return true;
133 }
134
getChannels() const135 int ModPlugDecoder::getChannels() const
136 {
137 return 2;
138 }
139
getBitDepth() const140 int ModPlugDecoder::getBitDepth() const
141 {
142 return 16;
143 }
144
getDuration()145 double ModPlugDecoder::getDuration()
146 {
147 // Only calculate the duration if we haven't done so already.
148 if (duration == -2.0)
149 {
150 int lengthms = ModPlug_GetLength(plug);
151
152 if (lengthms < 0)
153 duration = -1.0;
154 else
155 duration = (double) lengthms / 1000.0;
156 }
157
158 return duration;
159 }
160
161 } // lullaby
162 } // sound
163 } // love
164
165 #endif // LOVE_NO_MODPLUG
166